CN104114449A - A sensor arrangement for measuring the concentration of a substance - Google Patents
A sensor arrangement for measuring the concentration of a substance Download PDFInfo
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- CN104114449A CN104114449A CN201380009460.4A CN201380009460A CN104114449A CN 104114449 A CN104114449 A CN 104114449A CN 201380009460 A CN201380009460 A CN 201380009460A CN 104114449 A CN104114449 A CN 104114449A
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- sample
- light source
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- detector
- light
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- 239000000126 substance Substances 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 63
- 230000003287 optical effect Effects 0.000 claims abstract description 27
- 230000001954 sterilising effect Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000013049 sediment Substances 0.000 claims description 10
- 244000045947 parasite Species 0.000 claims description 8
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 235000021056 liquid food Nutrition 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims description 2
- 238000003908 quality control method Methods 0.000 claims description 2
- 230000002452 interceptive effect Effects 0.000 abstract 3
- 239000000523 sample Substances 0.000 description 104
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 26
- 239000007789 gas Substances 0.000 description 8
- 239000003381 stabilizer Substances 0.000 description 8
- 235000013305 food Nutrition 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 238000012856 packing Methods 0.000 description 6
- 238000004659 sterilization and disinfection Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 239000005350 fused silica glass Substances 0.000 description 2
- 230000001976 improved effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 239000006063 cullet Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000021393 food security Nutrition 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012625 in-situ measurement Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B55/00—Preserving, protecting or purifying packages or package contents in association with packaging
- B65B55/02—Sterilising, e.g. of complete packages
- B65B55/04—Sterilising wrappers or receptacles prior to, or during, packaging
- B65B55/10—Sterilising wrappers or receptacles prior to, or during, packaging by liquids or gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B3/00—Packaging plastic material, semiliquids, liquids or mixed solids and liquids, in individual containers or receptacles, e.g. bags, sacks, boxes, cartons, cans, or jars
- B65B3/04—Methods of, or means for, filling the material into the containers or receptacles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/256—Arrangements using two alternating lights and one detector
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
- G01N21/3151—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths using two sources of radiation of different wavelengths
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/069—Supply of sources
- G01N2201/0696—Pulsed
Abstract
A sensor arrangement for determining the concentration of a substance in an open sample (130) in the presence of an interfering material, comprising a first light source (200) emitting pulsed light (S1) at a first wavelength being absorbed by said substance, a second light source (210) emitting pulsed light (S2) at a second wavelength being transmitted through said substance, optical means (250, 252, 254, 310, 320, 330, 340) for directing at least a part of the emitted pulsed light (S1, S2) of said first and second wavelength through the open sample (130) along the same optical path, and a sample detector (230) arranged at the end of the optical path for receiving the emitted light (S1, S2) of said first and second wavelength being transmitted through the sample (130), wherein said interfering material is formed as deposits on at least one of said optical means (254, 310, 340, 256); being exposed to said substance, and wherein said first wavelength and said second wavelength are absorbed by said interfering material.
Description
Technical field
The present invention relates to sensor device.More particularly, the present invention relates to the sensor device for measuring the sterilization material concentration in bottle placer sterilizing unit.
Background technology
That people are known and be widely used in different industries for measuring the different sensors of content, existence or concentration of material, to monitor or to control the physical parameter of specific environment.
Because different application requires to use custom-designed sensor, so there are the different sensing technologies of a large amount of commercially available acquisitions.
This type of sensing technology comprises a use for light, and wherein sensor is measured absorption and/or the transmission amount of the sample in the light path by being disposed in launched light.Therefore, sensors with auxiliary electrode were device generally includes light source in the first side that is arranged in sample, is arranged in detector on the opposite side of sample and for measuring the controller of absorptivity and/or transmissivity.Preferred described controller also comprises calculating unit, and described calculating unit is for converting the transmissivity detecting and/or absorptivity to sample size, such as the amount of predetermined substance in sample.
The example of prior art optical sensor is described in US3,895,233 and EP0762107 in.
Optical sensor is very attractive, because they can be used for many different samples.The curve that the optical absorption spectra of material is normally complicated, so by selecting the specific wavelength of using up can obtain significant sensor resolution.
In food processing, such as in liquid food packing, carton type (carton-based) packing are folded into packaging, it is filled by liquid food subsequently.For observing state food security regulations, and guarantee the food quality of sealing, must guarantee the food of sealing to carry out sterilizing.But, also must before filling and sealing, carry out sterilizing to packing itself.
In modern bottle placer, packing are used hydrogen peroxide (H conventionally
2o
2) sterilizing.Sterilizing can allow packing carry the H passing through
2o
2in sterilizing chamber, carry out, or as filling and sealing before by H
2o
2the sprayer unit that gas feeds in semi finished package carries out.Therefore, before filling, there is the aseptic area that allows packing pass through.
Prove H
2o
2optical absorption spectra be suitable for for detection of with the H measuring in the aseptic area of bottle placer
2o
2the optical sensor of amount.This type of optical sensor also requires to use optical lens and window to pass through H with guiding light
2o
2and arrive in detector.But in gaseous environment, such as in the aseptic area of liquid food bottle placer, the sediment on optical module contributes to the noise of measuring to increase, and therefore reduces the quality of measuring.
Although the sensor device provides some advantages, the complete structure of sensors with auxiliary electrode were device is unsuitable for wherein chaff interference and is tending towards forming sedimental application-specific in light path.
Therefore, need the sensor device of improvement, especially for the amount of sterilization material in measuring sample is vital such application.
Summary of the invention
Therefore, the present invention is preferably intended to by providing according to the system described in claims, alleviates, alleviates or eliminate one or more in defect in above-mentioned definite this area and shortcoming and solve at least the problems referred to above individually or with combination in any.
The light of different wave length that an object of the present invention is to allow transmitting according to same optical path by sample and arrive sample detector.
Another object of the present invention is to reduce the quantity of the cable of sensor device.
Another object of the present invention is by reducing reactive materials (as H
2o
2) risk directly contacting with electronic component improves the quality of sensor device.
Therefore, an imagination of the present invention is to make the necessarily light beam of sequence detection transmitting of single sample detector with pulse mode utilizing emitted light, and the first and second light beams can arrive sample detector by sample according to identical light path thus.
Another imagination is to provide sensor device, and described sensor device is insensitive to be formed at chaff interference on the various optical modules in the light path that is arranged in launched light as sediment.
According to an aspect, sensor device is provided, it is for measuring the concentration of open sample material under existing at chaff interference.Described sensor device comprises: the first light source, it is launched by the pulsed light under the first wavelength of described material absorbing, secondary light source, its transmitting sees through the pulsed light under the second wave length of described material, optical unit, it is guided through open sample for the light path along identical by least a portion of the pulsed light of described first wavelength of transmitting and second wave length, and sample detector, its end that is arranged in described light path is for receiving launched described the first wavelength that sees through described sample and the light of second wave length, wherein said chaff interference is formed on as sediment at least one in the described optical unit that is exposed to described material, and wherein said the first wavelength and second wave length are absorbed by described chaff interference.
According to another aspect of the present invention, provide sensor device, it is for the concentration of working sample material under existing at chaff interference.Described sensor device comprises: the first light source, its transmitting is by the pulsed light under the first wavelength of described material and the absorption of described chaff interference, secondary light source, it launches the pulsed light under the second wave length that sees through described material and absorbed by described chaff interference, optical unit, it is guided through sample for the light path along identical by least a portion of the pulsed light of launched described the first wavelength and second wave length, and sample detector, its end that is arranged in described light path is for receiving launched described the first wavelength that sees through sample and the light of second wave length.
The first light source, secondary light source and sample detector can be arranged in the same side of sample.This advantage is that sensor device can be made into smaller size smaller, and then because sample detector is positioned adjacent to controller, so the negligible amounts of needed cable.
Sensor device also can comprise reference detector, and reference detector is for receiving a launched part that does not see through described first wavelength of sample and the light of second wave length.Therefore, because reference detector can be to launched light accurately measuring through before sample, so can improve the quality of measurement.
Reference detector and the first light source, secondary light source and sample detector are arranged in the same side of sample.This has further improved the tight ness rating of sensor device.
Sensor device also can comprise controller, and described controller is connected to the first light source, secondary light source, sample detector and reference detector, and is configured to activate the first light source and secondary light source with pulse sequence.Described controller is also configured to the reception signal of sample detector and reference detector to be associated with relevant source.When this implements as single detector instead of as the sample detector of the separation for each wavelength at sample detector, be particularly advantageous.
Described controller also can be configured in the case of not activating the arbitrary light source in the first light source and secondary light source, by associated the reception signal of sample detector and reference detector light as a setting.Therefore because in the time of activating light source, can be from the signal that sample detector and reference detector receive subtracting background noise, so the accuracy rate that can be improved.
The first light source can be UV-LED, and thus, it is sane, small-sized, reliably and more cheap equipment to use.
Described controller can be configured to control the temperature of the first light source and secondary light source.This is favourable, because can realize the prolongation of light source life, and the variation of minimizing light intensity and Wavelength distribution.
The first light source, secondary light source, sample detector and reference detector can be closed in first housing of isolating with sample.This makes sensor device be specially adapted to corrosive atmosphere, as is applicable to the sample containing hydrogen peroxide.
The first housing can comprise: the first optical window, it allows leave the first housing and enter sample from the light of the first light source and secondary light source transmitting, and second optical window, it allows to leave sample and enter the first housing from the light of the first light source and secondary light source transmitting, wherein said sensor device also comprises temperature booster, and described temperature booster is configured to improve the temperature of the first and second optical windows.By temperature booster is provided, realize the Risk Reduction of sample material condensation.In addition, by heating optical window, have the risk of less stabilizer deposition, stabilizer deposition may affect measuring accuracy.
Described the first housing also comprises cooling vessel, and it reduces the temperature in the first housing.Therefore likely can make light source approach power supply, thereby reduce size sensor.
Described controller can be connected to memory device, the reference value of the detector signal that described memory stores receives, and its middle controller is also configured to, in the time that the detector signal receiving is different from the reference value of storage, transmit alarm signal.This is preferred in the case of existing the risk that may damage optical window.The in the situation that of this type of damage, the light intensity detecting will depart from anticipated value, thus can be because cullet trigger alarm signal.
According to further aspect, provide the bottle placer that the carton type of sealing liquid food packaging can be provided.Described bottle placer comprises the sensor device according to aforementioned aspect.
Described carton type is packaged in before filling and follow-up sealing form that can open bottles and provides, described open bottles is transmitted by sterilizing unit, described sterilizing unit comprises the aseptic gas manifold that has sealed described sensor device, and wherein said aseptic gas manifold comprises that at least one is directed to the aseptic gas discharge spray nozzle of open bottles.
The controller of described sensor device also can be configured to the material of the definite concentration in the sampling of sterile substance supply department, realizes thus the backfeed loop for desired substance concentration in sampling.
According to the further aspect also having, provide a kind of for the method by means of sensor device concentration of working sample material under the existence of chaff interference.Said method comprising the steps of: provide according to the sensor device described in aforementioned aspect, activate the first light source and secondary light source, described the first wavelength that sees through sample of launching by means of described sample detector reception and the light of second wave length; And by least one signal measuring of the light of launching corresponding to received concentration of material in sample under chaff interference exists.
According to another aspect, provide a kind of method for Quality control material concentration.Said method comprising the steps of: the sample that is connected to material supply department is provided, according to the concentration of material in aforementioned aspect working sample, the concentration of mensuration and reference value are compared, determine the correct operation parameter of described material supply department corresponding to the difference between concentration and the described reference value of described mensuration, and described correct operation parameter is passed to described material supply department to increase or to reduce the concentration of material in sample.
Brief description of the drawings
With reference to accompanying drawing, these and other aspects, features and advantages that the present invention has will be become apparent by the description of following embodiment of the present invention and be illustrated, wherein
Fig. 1 is according to the schematic diagram of the sensor device of embodiment;
Fig. 2 is the figure illustrating according to the sensor device detection order of embodiment; And
Fig. 3 is the schematic side elevation that comprises a part for the bottle placer of sensor device.
Fig. 4 is arranged on the schematic diagram of the sensor device in the wall of pipeline or chamber.
Detailed description of the invention
Start with Fig. 1, show the schematic diagram of sensor device 100.Described sensor device 100 comprise the first housing 110, the second housing 120 and be arranged at least the first housing 110 and the second housing 120 between sample 130.Preferably the first housing 110 is connected to the second housing 120 by means of rigid support 400.
Preferably opening of sample 130, allows material to be measured to flow into and flows out sample 130.Therefore, in one embodiment, sensor device 100 is arranged in sample 130 inside are present in sample 130 one or more materials for in-situ measurement at least in part.In a preferred embodiment, sensor device 100 is located with respect to sample 130, make the second housing 120 be arranged in sample 130 inside, and the first housing 110 is arranged in sample 130 outsides at least in part.This is also illustrated in Fig. 4, and Fig. 4 illustrates that sensor device 100 is arranged in the pipeline of restriction opening sample or the wall 550 of chamber.
The first housing 110 forms the enclosure space of isolating with sample 130, and has sealed the first light source 200, secondary light source 210, reference detector 220 and sample detector 230.In addition, at the interior controller 240 that arranges of the first housing 110 for controlling light source 200,210 and detector 220,230.
The first housing 110 is also divided into the compartment 112,114 of two vertical stackings.Upper compartment 112 has sealed electronic component, i.e. controller 240, light source 200,210 and detector 220,230.In addition, other power supply and/or adaptor union have also been sealed therein thus.
Lower compartment 114 from upper compartment 112 to downward-extension with penetrate window 254,256.The second housing 120 is connected to the first housing 110 by means of the rigid supporting rod 400 that extends through sample 130.
The first light source 200 is launched the light S of the first wavelength or the first range of wavelengths
1.Secondary light source 210 is launched the light S in second wave length or second wave length interval
2.Select the first wavelength or the first range of wavelengths, to be mainly present in material in sample 130 and by other the less desirable material absorbing in sample 130.Select second wave length or second wave length interval, mainly to see through the material being present in sample 130, but mainly by the less desirable material absorbing in sample 130.Less desirable material is for example formed as sediment in light path, and this will be further described below.
Arrange that the first light source 200 and secondary light source 210 make launched light S
1and S
2orientation in 90 ° toward each other respectively.Also provide beam splitter 250 for by transmitting light S
1and S
2be divided into two independently light paths.The first light path directly extends to reference detector 220 from beam splitter 250, thus with reference to the light velocity, and the light S that launched
1, S
2, be directly incident upon on reference detector 220 and through sample 130.
The second light path extends to sample detector 230 from beam splitter 250, sample beam thus, the light S that launched
1, S
2, after passing sample 130, be incident upon on sample detector 230.
The second light path comprises the light S that the first condenser lens 252 is launched with guiding
1, S
2become arrow beam of light.In addition, the first housing 110 comprises that the light that forms the interface between the first housing 110 and sample 130 penetrates window 254.
Through after sample 130, the light S launching
1, S
2enter the second housing 120 via light entrance window 310, described smooth entrance window 310 is arranged to form the interface between sample 130 and the second housing 120.As light S
1, S
2while propagating in the second housing 120, provide a pair of parasite 320,330 for by transmitting light S
1, S
2re-orient into about 180 °.
In the embodiment shown in Fig. 1, parasite the 320, the 330th, two surfaces of retroflector or the retroreflector such as prism 350.Described prism is so-called beam-folding Dove prism, and it is shaped to truncated cone double prismatic square, has the first angle surface 320 at 45 ° and the second angle surface 330 at 45 °.In this type of prism, reflected light is parallel to incident light and penetrates.In this type of prism, complete full internal reflection, and between incident light and reflected light, do not occur or only occur a small amount of reflecting loss.
As shown in Figure 1, arrange that prism meets at right angles incident light to be guided to the maximum square surface of prism.Described light is spent in the first angle surface 320 places internal reflection 90 at 45 °, and proceeds to the second angle surface 330 at 45 °, and at 90 other degree of described second its internal reflection of angle surface at 45 ° place, after this, it penetrates prism.Therefore, the light point of incidence of prism and an ejaculation point displacement each other (displace).
The material of prism is preferably fused silica.The prism of being made up of fused silica can bear by the required temperature of phase hydrogen peroxide sterilizing.
Alternatively, can use the prism of being made by sapphire.In alternative embodiment, parasite 320,330 can be the surface of conventional double prismatic square.In another alternative embodiment, parasite 320,330 can be for being applicable to the mirror of light reflection ultraviolet, and the aluminium strengthening such as ultraviolet applies mirror.
Therefore, light S
1, S
2penetrate window 340 places at light and penetrate the second housing 120, described light penetrates window 340 and forms the ejaculation interface between the second housing and sample 130, thereby described light again saw through sample 130 before reentering the first housing 110 via light entrance window 256.Sample detector 230 is arranged in to the light S higher than the transmission for adjusting
1, S
2second light path of the second condenser lens 258 of shape in.
Therefore,, by the second light path,, through the light path of sample 130, be arranged to S
1and S
2both guide to single unique path of sample detector 230 from beam splitter 250.
By rebooting light by means of parasite 320,330, can reduce the overall dimensions of sensor device 100.But the light path of light transmission sample 130 is by the twice that is sample length, less thereby the localized variation of sample 130 interior material concentrations can affect the risk of measurement.
Also preferably be arranged to single detector with reference to detector 220, thereby the signal F1 of the light corresponding to detected is delivered to controller 240.
In addition, preferably sample detector 230 is arranged to single detector, thereby the signal F2 of the light corresponding to detected is delivered to controller 240.
Therefore, controller 240 is configured to receive signal F1, the F2 of self-detector 220,230 and calculate the amount that is present in the predetermined substance in sample 130, and compensation is simultaneously present in the impact of the less desirable material (being chaff interference) in the second light path.Can carry out in every way this type of and calculate, wherein at least one example is described in detail in US2003-025909 by same Applicant.
But general algorithm can briefly be described below.Reference detector 220 provides corresponding to the light S launching that does not pass sample 130
1, S
2the reference signal F of light intensity
1.In a similar manner, sample detector 230 provides the light S corresponding to the transmitting through after sample 130
1, S
2the sample signal F of light intensity
2.Therefore, controller 240 is accepted four kinds of different light intensity value, i.e. i) S
1referenced strength, ii) S
2referenced strength, iii) S
1sample strength, and iv) S
2sample strength.These light intensity value are by giving launched light S
1, S
2apply pulse and its corresponding light intensity value separately light source 220,210 is associated to obtain.By comparing S
1sample strength and S
1referenced strength, can obtain by the total absorption value that is present in other material not expecting to have in material in sample and the second light path.In addition, by comparing S
2sample strength and S
2referenced strength, can obtain the absorption value that the material that do not expected to have by chaff interference causes.Then, can process this two values according to predetermined formula, thereby obtain the concentration of the sample material that does not comprise chaff interference.
Sensor device 100 can be used for measuring the various materials in different application, but is preferably applied within the scope of liquid food process technology and is the mensuration to the concentration of bactericidal agent in packaging material for food sterilizing chamber.Conventionally, this type of sterilizing provides by making packaging material for food be exposed to hydrogen peroxide gas.
In this type of application, due in order to ensure final packaging and customer's the quality that is closed product of giving to be allocated, desired concn is the vital fact, and it is favourable therefore measuring the accurate concentration of hydrogen peroxide gas in sterilizing chamber.In the application that comprises gaseous hydrogen peroxide, also must avoid material directly to contact with the electronic component of sensor.This realizes by sealing the first housing 110 that comprises transmission window 254,256.But, use hydrogen peroxide to generally include and add various stabilizers well known in the art.This type of stabilizer is tending towards producing sediment on the mating surfaces including window 254,256,310,340.Thereby these sediments can represent and be present in utilizing emitted light S
1, S
2light path in chaff interference or the material not expecting to have.Therefore the embodiment, proposing has reduced this type of sedimental impact in the time measuring the actual concentrations of hydrogen peroxide.
Specifically apply for this, the first light source can be in ultraviolet (UV) scope, and the sediment that described light can form by hydrogen peroxide and by stabilizer absorbs.Secondary light source can be launched visible ray, and the disturbed thing of described visible ray is that stabilizer sediment absorbs, but sees through hydrogen peroxide gas.Preferably the first light source 200 and/or secondary light source 210 comprise at least one light-emitting diode.In order to detect the amount of hydrogen peroxide, the first light source 200, i.e. UV LED, is preferably configured to be transmitted in the light within the scope of 220 to 300nm, and secondary light source 210, i.e. visible LED, is preferably configured to be transmitted in the light within the scope of 350 to 700nm.
Further feature is also applicable to sensor device 100, for the more effective and sane measurement to sample material concentration is provided.
In detailed description of the invention, on strut bar 400, arrange temperature sensor 400.Described support 400 can for example be formed as the second housing 120 to be fixedly secured to multiple bars of the first housing 110.Described bar can be separated from each other to allow the material in sample 130 to flow through.In one embodiment, the first housing 110 and the second housing 120 are formed as cylinder, thereby in the periphery of opposed end, rib are set.Because absorptivity is the function of amount, so by measuring the temperature of sample 130, can measure more accurately actual material concentration.But concentration not only depends on quantity but also depends on pressure and temperature, so additional temperature sensor 410 allows to measure more accurately the concentration under setting pressure.For this reason, the direct or long-range controller 240 that is connected to of temperature sensor 410.
In addition, the lower compartment 114 of the first housing 110 comprises temperature booster 116, and temperature booster 116 is configured to the temperature of the window 254,256 that increases by the first housing 110.Temperature booster 116 can be arranged to around the heater coil of lower compartment 114, but also can use other heating arrangement for specific application.
Temperature booster 116 provides multiple advantages, specifically depends on the selection of material in sample 130.If material is gaseous hydrogen peroxide, temperature booster will reduce the risk of condensation on window 254,256.Because condensation can cause the variation of the absorptivity of incident light, so in the time reducing or even eliminate the risk of condensation, just provide the measurement of improvement.In addition, by heating window 254,256, due to the existence of stabilizer of hydrogen peroxide and they, to be deposited on the risk that on cold surface, ability causes sediment to form less.
In addition, the first housing 110 can comprise cooling vessel 118, and it is for reducing the temperature in the first housing 110.By reducing temperature, improve operation electronic components such as light source 200,210 and detector 220,230.Cooling vessel can be set to around the bounded system of the passage of inner shell 110, thereby the cooling fluid such as cooling water expansion tank leaves in entrance 119a place access passage system and at outlet 119b place.In order to obtain extra cooling effectiveness, can fan be set in the first housing 110 inside, so that the wind circulation in the first housing 110.
Preferably controller 240 receives from the signal that is arranged in other temperature sensor in the first housing 110, makes to continue during operation the temperature of monitoring electronic component.In addition, can implement backfeed loop by means of controller 240, while making excess Temperature that the flow of cooling fluid can be in the first housing 110, increase.The reference temperature that exceedes storage in temperature, controller can be adjusted to and close light source 200,210.The reference temperature of storage is 45 DEG C, but certainly can be arranged to another temperature value.In addition select or as a kind of, the in the situation that of high temperature, controller 240 can cut out temperature booster 116.Take described measure, to extend LED, the particularly life-span of UV-LED.
Up to the present, reference detector 220 and sample detector 230 are configured to receive the light S of transmitting
1, S
2single detector.But each also can be set to two independently detectors in these detectors 220,230, wherein each detector is configured to only detect in launched wavelength or range of wavelengths.
But, in Fig. 1, show preferred configuration, to be wherein set to detect whole utilizing emitted lights be S for reference detector 220 and sample detector 230
1and S
2both single detectors.For the mode with sane is by S
1and S
2be separated from each other, controller 240 is with pulse mode control light source 220,210.
Referring to Fig. 2, in the time of t1, controller 240 activates the light pulse S with the first wavelength or the first range of wavelengths
1the first corresponding light source 200 also continues the shorter time.Because detector 220,230 is arranged to continuous handling, so they will sense the light S of transmitting
1, but do not know that it is which transmitting from light source 200,210.Because controller 240 has triggered light source 200, so it can be associated the signal detecting with correct light source 200.In next step, in the time of t2, controller activates secondary light source 210 and continues the shorter time.Controller is associated the signal detecting immediately with secondary light source 210.Now, controller 240 can be measured the amount of substance being present in sample 130, compensates any chaff interference not expecting to have simultaneously.But, material quantitatively can be by providing when the t3 the 3rd to detect sample and further improve.Because light source 200,210 is not activated, so the signal detecting is equivalent to the background radiation of the absorptivity and/or the transmissivity that affect previous mensuration.Therefore the intensity detecting while, can be respectively deducting t3 from the signal previously having detected when t1 and the t2.Preferably during the equipment of sensor device 100 has wherein been installed in operation, repeat this program, this repetition illustrates as t4-t9.The embodiment of measuring bias light is particularly advantageous in the application such as food processing, and wherein bias light can have the wavelength identical with first and/or second wave length.For example, the sterilizing chamber in bottle placer can be exposed to from outside light, i.e. the light of normal room illumination.Thereby this light can cover second wave length in the scope of visible ray, therefore reduce this type of bias light and will improve operation and the reliability of sensor device.
Make light pulse reduce the operating time of UV-LED, thereby extend the life-span of UV-LED.
Controller 240 also can be connected to memory device, the reference value of the received detector signal of described memory stores.This type of reference value can represent normal operating condition, controller 240 further can be configured in the time that the signal detecting departs from the reference value of storage, trigger thus alarm.This condition at sample is particularly advantageous may causing damaging equipment such as window 254,256,310,340.If for example in window 254,256,310,340 will be broken, the signal F detecting
1, F
2light intensity will be different from predetermined value, so the warning that can produce instruction maintenance or safeguard.
Memory device also for example stores the reference value as the source efficiency of the function of temperature.Controller is configured to, in the time that the detector signal of the sample detector receiving (230) (its with the first light source of detecting and the temperature correlation of secondary light source 200,210) is significantly less than the reference value of storage, transmit alarm signal.
Forward now Fig. 3 to, show the technical application of sensor device 100.A part for bottle placer illustrates as sterilizing unit 500, in described sterilizing unit 500, introduces and prepares filling packaging 510 by means of carrier 520.Preferably in the upstream portion of identical bottle placer 500, by packaging 520 in advance half-lap to form the carton jacket cylinder with an open end 512 and a closed end 514.For example there is the closed end 514 of the plastic assembly of the lid that comprises neck, shoulder and sealing pour spout, can for example be injection moulded into the carton type layered product that forms sleeve.
Sterilizing unit 500 comprises that sealing gaseous state sterilization material (for example adds or do not add the H of stabilizer
2o
2) aseptic gas manifold 530 and comprise multiple discharge nozzles 540, the sterilization material that described nozzle 540 is configured to that spray form is distributed is ejected into the inside of packaging 510.
Sensor device 100 is arranged in manifold 530, to measure and the concentration of definite sterilization material.Therefore,, in the time that at least the first housing 100 is isolated with sterilization material, the sample 130 of sensor device is equivalent to the inside of manifold 530.Therefore sensor device 100 is configured in bottle placer operating period continuous handling, with quality and the robustness of Accurate Measurement sterilizing unit 500.Preferably, sensor device 100 can make the amount in measured sample 130 be back to material supply department (not shown), to increase or to reduce the amount in manifold 530 (being sample 130).
Can in various application, implement this type of backfeed loop, thereby can compare by measured concentration and corresponding to the reference value of expecting concentration.Therefore the difference between measured concentration and reference value can be converted to the calibrated operating parameter of the material supply department that is connected to sample, such as flow rate.Therefore, the controller of sensor device can be configured to signal to be passed to material supply department, to increase or to reduce the concentration of material in sample.
Although described detailed description of the invention, should be appreciated that the scope in the case of not departing from claims restriction and can carry out various amendments to print system.
Claims (19)
1. for measure the sensor device of concentration for open sample (130) material under the existence of chaff interference, described sensor device comprises:
The first light source (200), it is launched by the pulsed light (S under the first wavelength of described material absorbing
1),
Secondary light source (210), its transmitting sees through the pulsed light (S under the second wave length of described material
2),
Optical unit (250,252,254,310,320,330,340), its for the light path along identical by launched described the first wavelength and the pulsed light (S of second wave length
1, S
2) at least a portion be guided through described open sample (130), and
Sample detector (230), its end that is arranged in described light path is for receiving launched described the first wavelength that sees through described sample (130) and the light (S of second wave length
1, S
2), wherein
Described chaff interference is formed at least one in the described optical unit (250,252,254,310,320,330,340) that is exposed to described material as sediment, and wherein said the first wavelength and second wave length are absorbed by described chaff interference.
2. sensor device according to claim 1, wherein said the first light source (200), described secondary light source (210) and described sample detector (230) are arranged on the same side of described sample (130).
3. sensor device according to claim 2, wherein said optical unit comprises the parasite (320,330) in the second side that is arranged in described sample (130), and described parasite (320,330) is suitable for together by described light (S
1, S
2) reboot to described sample detector.
4. sensor device according to claim 3, wherein said parasite (320,330) is the surface of angle retroreflector prisms (350), wherein reflects by total internal reflection and realizes.
5. according to the sensor device described in any one in claim 1-4, it also comprises reference detector (220), and this reference detector (220) is for receiving launched described the first wavelength and the light (S of second wave length
1, S
2) do not see through the part of described sample (130).
6. sensor device according to claim 5, wherein said reference detector (220) is arranged in the same side of described sample (130) with described the first light source (200), described secondary light source (210) and described sample detector (230).
7. according to the sensor device described in claim 5 or 6, also comprise controller (240), described controller (240) is connected to described the first light source (200), described secondary light source (210), described sample detector (230) and described reference detector (220), and be configured to activate described the first light source (200) and secondary light source (210) with pulse sequence, described controller is also configured to the reception signal (F of described sample detector (230) and described reference detector (220)
1, F
2) be associated to relevant described light source (200,210).
8. sensor device according to claim 7, wherein said controller (240) is also configured in the case of not activating any in described the first light source (200) and described secondary light source (210), by the reception signal (F of described sample detector (230) and described reference detector (220)
1, F
2) association light as a setting.
9. according to sensor device in any one of the preceding claims wherein, wherein said the first light source (200) is UV-LED.
10. according to the sensor device described in any one in claim 7-9, wherein said controller (240) is configured to control the temperature of described the first light source (200) and described secondary light source (210), and in the time that this temperature exceedes stored reference temperature, closes described source.
11. according to the sensor device described in any one in claim 6-10, wherein described the first light source (200), described secondary light source (210), described sample detector (230) and described reference detector (220) is enclosed in first housing (110) of isolating with described sample (130).
12. sensor devices according to claim 11, wherein said the first housing (110) comprising:
The first optical window (254), it allows from the light (S of described the first light source (200) and described secondary light source (210) transmitting
1, S
2) leave described the first housing (110) and enter sample (130), and second optical window (256), it allows the light (S launching from described the first light source (200) and described secondary light source (210)
1, S
2) leave sample (130) and enter described the first housing (110), wherein said sensor device (100) also comprises temperature booster (116), and described temperature booster (116) is configured to improve the temperature of described the first and second optical windows (254,256).
13. according to the sensor device described in claim 11 or 12, wherein said the first housing (110) comprises cooling vessel (118), and described cooling vessel (118) is for reducing the temperature in described the first housing (110).
14. according to the sensor device described in any one in claim 7-13, and wherein said controller (240) is connected to memory device, the detector signal (F that described memory stores receives
1, F
2) reference value, and wherein said controller (240) is also configured at received detector signal (F
1, F
2) while being different from stored reference value, transmit alarm signal.
15. 1 kinds can provide the bottle placer of the carton type packaging of sealing liquid food, and it comprises according to the sensor device (100) described in any one in claim 1-12.
16. bottle placers according to claim 15, wherein said carton type provides with the form of open bottles (510) before being packaged in filling and follow-up sealing, described open bottles (510) is transmitted by sterilizing unit (500), described sterilizing unit (500) comprises the aseptic gas manifold (530) that has sealed described sensor device (100), and wherein said aseptic gas manifold (530) comprises that at least one is directed to the aseptic gas discharge spray nozzle (540) of described open bottles (510).
17. bottle placers according to claim 16, the controller (240) of wherein said sensor device (100) is configured to provide the material of the definite concentration in described sample (130) in sterile substance supply department.
18. 1 kinds for the method by means of sensor device concentration of the material of working sample under the existence of chaff interference, said method comprising the steps of:
Provide according to the sensor device described in any one in claim 1-14,
Activate described the first light source and described secondary light source,
Described the first wavelength that sees through described sample of launching by means of described sample detector reception and the light of second wave length, and
By the concentration of at least one signal measuring of described the launched light corresponding to received material in sample under chaff interference exists.
19. 1 kinds of methods for the concentration of the material of Quality control, said method comprising the steps of:
The sample that is connected to material supply department is provided,
Measure the concentration of the described material in described sample according to claim 16,
Measured concentration and reference value are compared,
Corresponding to the difference between described measured concentration and described reference value, determine the correct operation parameter of described material supply department, and
Described correct operation parameter is passed to described material supply department, to increase or to reduce the concentration of the described material in described sample.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1250297-7 | 2012-03-27 | ||
| SE1250297 | 2012-03-27 | ||
| SE1250616 | 2012-06-13 | ||
| SE1250616-8 | 2012-06-13 | ||
| PCT/EP2013/055200 WO2013143859A1 (en) | 2012-03-27 | 2013-03-14 | A sensor arrangement for measuring the concentration of a substance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104114449A true CN104114449A (en) | 2014-10-22 |
| CN104114449B CN104114449B (en) | 2016-08-24 |
Family
ID=47998404
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380009460.4A Expired - Fee Related CN104114449B (en) | 2012-03-27 | 2013-03-14 | The sensor device of measurement of species concentrations |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9625383B2 (en) |
| EP (1) | EP2830959A1 (en) |
| JP (1) | JP6316274B2 (en) |
| CN (1) | CN104114449B (en) |
| WO (1) | WO2013143859A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850533A (en) * | 2015-08-18 | 2018-03-27 | 国立大学法人德岛大学 | Concentration measurement apparatus |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792741B (en) * | 2014-01-17 | 2018-01-16 | 宸鸿科技(厦门)有限公司 | Light transmittance measurement equipment |
| DE102015103181B4 (en) * | 2015-03-05 | 2022-05-25 | Krohne Optosens Gmbh | Device for the optical measurement of a sample |
| US11119049B2 (en) * | 2015-07-21 | 2021-09-14 | Fluidsens International Inc. | Particles in liquid detection method and particles in liquid detection system and method to detect particles in the air |
| KR102514034B1 (en) * | 2016-02-19 | 2023-03-24 | 엘지전자 주식회사 | Optical Sensor for Measuring Degree of Fermentation of Kimchi |
| US10610610B2 (en) * | 2017-01-05 | 2020-04-07 | Biosense Webster (Israel) Ltd. | Hydrogen peroxide sterilizer with multiple UV sensors |
| ES2924373T3 (en) | 2017-03-01 | 2022-10-06 | Fluidion | Field Deployable Multiplexed Monitoring and Sampling Device and Bacterial Contamination Measurement Procedure |
| US9970813B1 (en) * | 2017-09-14 | 2018-05-15 | Biosense Webster (Israel) Ltd. | UV detection of sterilant concentration and dissipation in a volume of a chamber |
| EP3766588B1 (en) * | 2019-07-19 | 2022-12-14 | Intelligent Agricultural Solutions, LLC | Spray pattern monitoring |
| US11327007B2 (en) | 2019-09-26 | 2022-05-10 | Fluidsens International Inc. | Compact and secure system and method for detecting particles in fluid |
| US20230060851A1 (en) * | 2021-09-01 | 2023-03-02 | Cardioquip, Llc | System and method for in-line optical sensing of hydrogen peroxide |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5227636A (en) * | 1991-09-16 | 1993-07-13 | University Corporation For Atmospheric Research | Dual path ultraviolet hygrometer |
| US20030025909A1 (en) * | 1998-12-01 | 2003-02-06 | Hans Hallstadius | Method and apparatus for measuring of the concentration of a substance in a fluid medium |
| US6665061B1 (en) * | 1999-04-23 | 2003-12-16 | Stago International | Method and device for detecting variations of optical properties in a sample in and analysis process |
| US6841778B1 (en) * | 2001-11-09 | 2005-01-11 | Environmental Systems Products Holdings Inc. | Method and apparatus for measuring particulates in vehicle emissions |
| CN101122566A (en) * | 2007-05-31 | 2008-02-13 | 王健 | Semiconductor laser absorption spectrum gas analysis method and system |
| CN101413877A (en) * | 2007-10-18 | 2009-04-22 | 通用电气公司 | System and method for sensing fuel moisturization |
| US20100053621A1 (en) * | 2008-08-29 | 2010-03-04 | Phygen, Inc. d/b/a Sterilucent, Inc. | Apparatus and method for measuring the concentration of gases in a sterilization chamber |
| WO2010072270A1 (en) * | 2008-12-23 | 2010-07-01 | Abb Research Ltd | Oxygen concentration measuring device |
| CN201555799U (en) * | 2009-10-12 | 2010-08-18 | 江苏惠通集团有限责任公司 | Infrared optical spectrometer |
| WO2010095472A1 (en) * | 2009-02-18 | 2010-08-26 | 株式会社堀場製作所 | Sample analyzing apparatus |
| CN201637666U (en) * | 2009-10-23 | 2010-11-17 | 东华大学 | Dynamic measuring instrument of solution concentration |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5017275B1 (en) * | 1970-09-08 | 1975-06-19 | ||
| US3895233A (en) | 1972-10-26 | 1975-07-15 | Bailey Meter Co | Gas analyzer |
| US3976883A (en) | 1973-05-10 | 1976-08-24 | Honeywell Inc. | Infrared analyzer |
| DE2948590C2 (en) * | 1979-12-03 | 1985-08-22 | Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch | Device for measuring the absorption of gas mixtures |
| US4471220A (en) * | 1981-12-21 | 1984-09-11 | Exxon Research And Engineering Co. | System for monitoring trace gaseous ammonia concentration in flue gases |
| US4749276A (en) | 1986-01-23 | 1988-06-07 | Mcdonnell Douglas Corporation | Long path absorption cell |
| JPS62201334A (en) | 1986-02-28 | 1987-09-05 | Nippon Steel Corp | Method and device for measuring concentration and partial pressure of gas |
| JPH01244341A (en) | 1988-03-25 | 1989-09-28 | Seki Electron Kk | Light absorbing type ozone concentration measuring device |
| EP0762107A1 (en) | 1995-09-11 | 1997-03-12 | FISHER & PAYKEL LIMITED | An infrared gas analyser and humidity sensor |
| JPH09318528A (en) | 1996-05-28 | 1997-12-12 | Matsushita Electric Works Ltd | Gas sensor |
| US5818598A (en) * | 1996-12-20 | 1998-10-06 | Aerodyne Research, Inc. | Nondispersive optical monitor for nitrogen-oxygen compounds |
| AU753047B2 (en) | 1997-11-14 | 2002-10-03 | Ethicon Inc. | Method for measuring the concentration of hydrogen peroxide vapor |
| JP4034920B2 (en) * | 1998-12-01 | 2008-01-16 | テトラ ラバル ホールデイングス エ フイナンス ソシエテ アノニム | Method and apparatus for determining the concentration of a substance in a sample in the presence of interfering materials |
| FR2809816B1 (en) | 2000-05-30 | 2003-04-18 | Gaz De France | METHOD AND DEVICE FOR DETECTING GAS LEAKS |
| US7046362B2 (en) * | 2001-12-12 | 2006-05-16 | Trustees Of Princeton University | Fiber-optic based cavity ring-down spectroscopy apparatus |
| US6775001B2 (en) * | 2002-02-28 | 2004-08-10 | Lambda Control, Inc. | Laser-based spectrometer for use with pulsed and unstable wavelength laser sources |
| DE10316685A1 (en) | 2003-04-10 | 2004-10-28 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Device for the photometric measurement of the concentration of a chemical substance in a measuring solution |
| AU2004273769A1 (en) * | 2003-09-23 | 2005-03-31 | Gambro Lundia Ab | An apparatus, a system and a method relating to hemodialysis, hemodiafiltration, hemofiltration or peritoneal dialysis |
| US7304724B2 (en) * | 2004-04-13 | 2007-12-04 | The Regents Of The University Of California | Method and apparatus for quantification of optical properties of superficial volumes |
| JP2006029968A (en) * | 2004-07-15 | 2006-02-02 | Chubu Electric Power Co Inc | Instrument and method for measuring concentration |
| GB0416732D0 (en) * | 2004-07-27 | 2004-09-01 | Precisense As | A method and apparatus for measuring the phase shift induced in a light signal by a sample |
| JP4411599B2 (en) * | 2004-10-26 | 2010-02-10 | 横河電機株式会社 | Infrared gas analyzer and infrared gas analysis method |
| JP2008039539A (en) * | 2006-08-04 | 2008-02-21 | Shimadzu Corp | Light scattering detector |
| JP4762128B2 (en) * | 2006-12-26 | 2011-08-31 | 株式会社堀場製作所 | Absorption spectrometer |
| EP2430423B1 (en) * | 2009-05-11 | 2017-08-02 | GasPorOx AB | Apparatus and method for non-intrusive assessment of gas in packages |
| US8916815B2 (en) * | 2009-12-18 | 2014-12-23 | Schlumberger Technology Corporation | Immersion probe for multi-phase flow assurance |
| JP2012002067A (en) * | 2010-06-14 | 2012-01-05 | Hitachi Automotive Systems Ltd | Dpf failure detection method and device, and exhaust gas particulates detection device |
| US9140648B2 (en) * | 2013-03-12 | 2015-09-22 | Ecolab Usa Inc. | Fluorometer with multiple detection channels |
-
2013
- 2013-03-14 JP JP2015502193A patent/JP6316274B2/en not_active Expired - Fee Related
- 2013-03-14 WO PCT/EP2013/055200 patent/WO2013143859A1/en active Application Filing
- 2013-03-14 CN CN201380009460.4A patent/CN104114449B/en not_active Expired - Fee Related
- 2013-03-14 EP EP13712506.8A patent/EP2830959A1/en not_active Withdrawn
- 2013-03-14 US US14/387,638 patent/US9625383B2/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5227636A (en) * | 1991-09-16 | 1993-07-13 | University Corporation For Atmospheric Research | Dual path ultraviolet hygrometer |
| US20030025909A1 (en) * | 1998-12-01 | 2003-02-06 | Hans Hallstadius | Method and apparatus for measuring of the concentration of a substance in a fluid medium |
| US6665061B1 (en) * | 1999-04-23 | 2003-12-16 | Stago International | Method and device for detecting variations of optical properties in a sample in and analysis process |
| US6841778B1 (en) * | 2001-11-09 | 2005-01-11 | Environmental Systems Products Holdings Inc. | Method and apparatus for measuring particulates in vehicle emissions |
| CN101122566A (en) * | 2007-05-31 | 2008-02-13 | 王健 | Semiconductor laser absorption spectrum gas analysis method and system |
| CN101413877A (en) * | 2007-10-18 | 2009-04-22 | 通用电气公司 | System and method for sensing fuel moisturization |
| US20100053621A1 (en) * | 2008-08-29 | 2010-03-04 | Phygen, Inc. d/b/a Sterilucent, Inc. | Apparatus and method for measuring the concentration of gases in a sterilization chamber |
| WO2010072270A1 (en) * | 2008-12-23 | 2010-07-01 | Abb Research Ltd | Oxygen concentration measuring device |
| WO2010095472A1 (en) * | 2009-02-18 | 2010-08-26 | 株式会社堀場製作所 | Sample analyzing apparatus |
| CN201555799U (en) * | 2009-10-12 | 2010-08-18 | 江苏惠通集团有限责任公司 | Infrared optical spectrometer |
| CN201637666U (en) * | 2009-10-23 | 2010-11-17 | 东华大学 | Dynamic measuring instrument of solution concentration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107850533A (en) * | 2015-08-18 | 2018-03-27 | 国立大学法人德岛大学 | Concentration measurement apparatus |
| CN107850533B (en) * | 2015-08-18 | 2020-06-30 | 国立大学法人德岛大学 | Concentration measuring device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104114449B (en) | 2016-08-24 |
| WO2013143859A1 (en) | 2013-10-03 |
| JP2015515624A (en) | 2015-05-28 |
| US9625383B2 (en) | 2017-04-18 |
| JP6316274B2 (en) | 2018-04-25 |
| EP2830959A1 (en) | 2015-02-04 |
| US20150049335A1 (en) | 2015-02-19 |
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